Found 2 items, similar to toughened.
English → English (WordNet) Definition: toughened toughened adj 1: physically toughened; “the tough bottoms of his feet” [syn: tough] [ant: tender] 2: made hard or flexible or resilient especially by heat treatment; “a sword of tempered steel”; “tempered glass” [syn: tempered, treated, hardened] [ant: untempered]
English → English (gcide) Definition: Toughened Toughen \Tough"en\, v. i. & t. [imp. & p. p. Toughened; p. pr. & vb. n. Toughening.] To grow or make tough, or tougher. [1913 Webster]